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3 years ago

14

What is the value of the expression (-8)(6) - (-4)(-5) + (-3)(-6)?

1 answer:

Vlad1618 [11]3 years ago

5 0

-77 is the correct answer. Hope this helped. Comment if you would like a more detailed answer.

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What is the solution x+2y=7 and x-2y=-1

erica [24]

$\underline{+\left\{\begin{array}{ccc}x+2y=7\\x-2y=-1\end{array}\right}\qquad\text{add both sides of the equations}\\\\.\qquad\qquad2x=6\qquad\text{divide both sides by 2}\\.\qquad\qquad \boxed{x=3}\\\\\text{Put the value of x to the first equation}\\\\3+2y=7\qquad\text{subtract 3 from both sides}\\\\2y=4\qquad\text{divide both sides by 2}\\\\\boxed{y=2}\\\\Answer:\ \boxed{x=3\ and\ y=2\to(3,\ 2)}$

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2 years ago

The cost of a council tax bill increased by 5%.

andreyandreev [35.5K]

The council tax bill before the increase is £1240

The equation that represents the percentage increase in council tax bill is :

percentage increase x t = £62

Where t represents the initial council tax bill - council tax bill before the 5% increase

5% x t = £62

0.05 x t = £62

Divide both sides of the equation by 0.05

t = £62 / 0.05 = £1240

To check if the answer derived is correct : 5% x 1240 = 62.

A similar question was answered here: brainly.com/question/12066598?referrer=searchResults

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2 years ago

Can anyone find the answers this for these question but make them fractions

k0ka [10]

We are given fractions $\frac{77672}{5548}$ and $\frac{288184}{34}$ .

In order to write them in simplest fractions, we need to find a common number that can divide both top and bottom.

Let us work on simplifying first fraction first.

$\frac{77672}{5548}$

We have 77672 on the top and 5548 in the bottom.

The greatest number 5548 can divide both 77672 and 5548 both.

Dividing 77672 by 5548, we get 14 and dividing 5548 by 5548 we get 1.

Putting quotent 14 on the top and 1 in the bottom, we get

$\frac{14}{1}$ . This is the answer for first part.

Let us work on simplifying second fraction $\frac{288184}{34}$ .

Top number 288184 and bottom number 34, both can be divided by 34.

On dividing 288184 by 34, we get 8476 and dividing 34 by 34, we get 1.

Putting quotent 8476 on the top and 1 in the bottom, we get

$\frac{8476}{1}$ . This is the answer for second part.

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3 years ago

Can someone explain how to use the Phythagoren theorem please?

Alex

Step-by-step explanation:

there are three parts first one is hypotenuse, base, height....

hope you understood

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2 years ago

If 1 comes before 2 then what comes in between 1 and 2

Ann [662]

Between 1 and 2 would be decimals. E.g: 1.1, 1.2,1.3 etc

8 0

3 years ago

Read 2 more answers